870 citations · 1.5k across the 17 of their papers we have counts for
9 papers · 1 filter
A new class of short distance universal amplitude ratios
M. Caselle, P. Grinza, R. Guida +1
We propose a new class of universal amplitude ratios which involve the first terms of the short distance expansion of the correlators of a statistical model in the vicinity of a cr…
Exact Consequences of the Trace Anomaly in Four Dimensions
Andrea Cappelli, Riccardo Guida, Nicodemo Magnoli
The general form of the stress-tensor three-point function in four dimensions is obtained by solving the Ward identities for the diffeomorphism and Weyl symmetries. Several propert…
Vacuum Expectation Values from a variational approach
Riccardo Guida, Nicodemo Magnoli
In this letter we propose to use an extension of the variational approach known as Truncated Conformal Space to compute numerically the Vacuum Expectation Values of the operators o…
Tricritical Ising Model near criticality
Riccardo Guida, Nicodemo Magnoli
The most relevant thermal perturbation of the continuous d=2 minimal conformal theory with c=7/10 (Tricritical Ising Model) is treated here. This model describes the scaling region…
3D Ising Model:The Scaling Equation of State
Riccardo Guida, Jean Zinn Justin
The equation of state of the universality class of the 3D Ising model is determined numerically in the critical domain from quantum field theory and renormalization group technique…
On the Short Distance Behavior of the Critical Ising Model Perturbed by a Magnetic Field
R. Guida, N. Magnoli
We apply here a recently developed approach to compute the short distance corrections to scaling for the correlators of all primary operators of the critical two dimensional Ising…